For gravitational modes with \(\ell = 2\) , the authors of [1]} found \(\omega = -1.335i/r_+\)  is a good fit for the relation between \(r_+\)  and the purely imaginary \(\omega \)  for \(r_+ \ge 10\) . For \(r_+ \le 1\)  we obtain a good fit with \(\omega = 2.4416i - 4.4097i/r_+ \) . To get this fit we calculated the purely imaginary \(\omega \)  for \(r_+ = 0.3, 0.4, ..., 1.0\) .
